Successful Hollywood composer George Webber (Moore) has everything—money, a beautiful house and a talented, sexy girlfriend—but as he turns 42, he spends his time watching beautiful young women and rating each of them on a scale of 1 to 10. His standards are tough—the Venus de Milo, would only rate a 7. And then George sees a 10 (in Bo Derek).

Possessed by her beauty, he will stop at nothing to have her, even though she is on her honeymoon. George's wild quest leads him to a psychiatrist's couch, an afternoon of agony in a dentist's chair and a romantic tropical resort.